Lecture Exam 3 - Chapter 9 Flashcards Preview

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Flashcards in Lecture Exam 3 - Chapter 9 Deck (84)
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1

_________ muscle – muscles attached to bone

Skeletal

2

_________ muscle:
Function – produce movement by pulling on bone

Skeletal

3

_________ muscle – muscle of the heart

Cardiac

4

_________ muscle:
Function – pushes blood through the circulatory system

Cardiac

5

_________ muscle – lines the hollow organs

Smooth

6

_________ muscle:
Function – pushes things through and out of the body

Smooth

7

- Properties of muscle -

_________ – ability to respond to nerve impulses

Electrical excitability

8

- Properties of muscle -

_________ – ability to contract and generate force

Contractility

9

- Properties of muscle -

_________ – ability to stretch without being damaged

Extensibility

10

- Properties of muscle -

_________ – ability to return to its original shape and size

Elasticity

11

-four functions of skeletal muscle-

_________ – muscle contracts pulling on the tendon which moves a bone (i.e. running, walking, nodding the head)

Produce movement

12

-four functions of skeletal muscle-

Produce movement:
- _________ muscle moves blood throughout the body
- _________ muscle moves substances (food, urine, etc.) through and out of the body

-Cardiac
-Smooth

13

-four functions of skeletal muscle-

_________ – some muscles are always active to allow us to sit up, stand, etc.

Maintain posture and body position

14

-four functions of skeletal muscle-

Muscles _________ joints and help keep them _________

-cross
-stable

15

-four functions of skeletal muscle-

_________ – when a muscle contracts, heat is given off as a waste product

Maintenance of body temperature

16

- Three layers of connective tissue -

_________ – surrounds the whole muscle
--Separates the muscle from surrounding structures

Epimysium

17

- Three layers of connective tissue -

_________ – divides muscle into bundles of muscle cells called fascicles
--Also contains blood vessels and nerves that supply the muscle

Perimysium

18

- Three layers of connective tissue -

_________ – surrounds individual muscle cells
--Contains capillaries, cells to repair muscle, and nerves that control the muscle

Endomysium

19

Muscle requires a large amount of blood supply to bring in _________ and nutrients and carry away _________ products

-oxygen
-waste

20

Muscle cell = muscle _________

fiber

21

"_________” means muscle

Sarco

22

_________ – cell membrane of a muscle cell

Sarcolemma

23

_________ – cytoplasm of a muscle cell

Sarcoplasm

24

_________ – extensions of the sarcolemma

T tubules

25

_________ – organelle that stores calcium

Sarcoplasmic reticulum

26

-Sarcoplasmic reticulum-

-Tubular network surrounds each _________
-Terminal _________ – enlarged areas of the sarcoplasmic reticulum
-- _________ is released from the TC
-Release of calcium from the terminal cisternae is the first step in muscle _________

-myofibril
-cisternae
-Calcium
-contraction

27

- Sarcomere -

_________ mark the border of a sarcomere

Z lines or Z discs

28

- Sarcomere -

_________ is the center of the thick filament

M line

29

- Sarcomere -

_________ are the dark bands

A bands

30

- Sarcomere -

_________ are the light bands

I bands